Emerson Rosemount 3101, Reference Manual

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Reference Manual
00809-0100-4840, Rev CB
Section 4: Starting up
February 2015
Starting up
4.3.3 Setting the bottom reference (on the 3101)
Screen display: b.rEF
Defaults: 8.000 (m), 26.24 (ft.), 314.9 (in.)
Note
See Figure C-1 on page 102 for a map of the programming menu structure and how to access all
the menu options.
To change the bottom reference (b.rEF) setting
1. If entering the menu system from the PV display, press the green button

to indicate
the “b.rEF” menu option (see the above note).
2. Press the blue button

to enter the menu for b.rEF. The display indicates the present
b.rEF value.
3. If this value is correct, press the red button

and then press the green button

to get
to the next menu option. Otherwise, continue with step ( 4 ).
4. Press the blue button

to start editing. The first digit flashes to indicate it can be
edited.
5. Press the green button

repeatedly to edit the flashing digit.
6. Press the blue button

to move to the next digit. The digit flashes to indicate it can be
edited.
7. Repeat steps ( 5 ) and ( 6 ) until the last digit is flashing, and edited as required.
8. Press the blue button

to confirm the new b.rEF value. None of the digits should now
be flashing.
9. Press the red button

to save the new value if it is correct, or press the blue button

to
not save. Afterwards, depending on the button pressed, either the “b.rEF” menu or the
next menu appears.
4.3.4 Setting 4 mA and 20 mA levels (on the 3101)
Screen display: 4 and 20
4 mA level defaults: 0.000 (m), 00.00 (ft.), 000.0 (in.)
20 mA level defaults: 7.500 (m), 24.60 (ft.), 295.2 (in.)
The 4 mA level may be set above or below the 20 mA level to suit the monitoring or control
equipment.
Note
To set the 4 and 20 mA levels by ranging the transmitter to a fixed target, such as the level in the
tank at any particular time, skip these menu options by pressing the green button

twice to get
to the next menu option.